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Refrigerator

A refrigerator and heat exchange technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc.

Inactive Publication Date: 2013-12-04
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other micromachining techniques currently in the literature on microchannel J-T effect refrigerators cannot achieve such structures

Method used

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Experimental program
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Embodiment Construction

[0050] figure 2 It is a structural schematic diagram of the refrigerator in this embodiment; Figure 5 It is a partial structural schematic diagram of the refrigerator in the embodiment. Such as figure 2 As shown, the refrigerator combines a J-T effect refrigerator with a multi-layer microchannel structure made by atomic diffusion fusion welding technology, including: an inlet and outlet part 6, a heat recovery part 5, a throttling part 3, and an evaporation chamber 4.

[0051] image 3 It is a partial structural schematic diagram of the inlet and outlet of the refrigerator in the embodiment. Such as image 3 As shown, the inlet and outlet part 6 has an inlet 1 and an outlet 2. The inlet can allow relatively high-temperature and high-pressure gas to enter the refrigerator and distribute the airflow formed by the relatively high-temperature and high-pressure gas to the heat recovery heat exchange part connected thereto. The relatively high-temperature and high-pressure g...

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Abstract

A refrigerator based on micro-channel regenerative heat exchange technology and Joule-Thomson effect is machined by the aid of atomic diffusion fusion welding technology and comprises an inlet-outlet portion, a regenerative heat exchange portion, a throttling portion and an evaporating cavity. The inlet-outlet portion is provided with an inlet and an outlet, the regenerative heat exchange portion comprises at least one high-temperature layer and at least one low-temperature layer which are pairwise adjacent, each layer is provided with at least one channel, high-temperature and high-pressure gas enters the channels of the high-temperature layers from the inlet, then enters the throttling portion and is cooled in a throttling manner once, and then the high-temperature and high-pressure gas flows to the evaporating cavity with a large space and accordingly is cooled in the throttling manner again. Owing to throttling and cooling, part of the gas is condensed into liquid, the rest gas is low-temperature and low-pressure gas, the liquid and the low-temperature and low-pressure gas are mixed together to form a low-temperature and low-pressure gas liquid mixture, the evaporating cavity keeps the low temperature by the aid of the low-temperature and low-pressure gas liquid mixture, a high-temperature device connected with the evaporating cavity is cooled by the evaporating cavity, and the gas in the evaporating cavity reflows into the channels of the low-temperature layers and is discharged from the outlet after exchanging heat with the high-temperature and high-pressure gas in the channels of the high-temperature layers adjacent to the low-temperature layers.

Description

technical field [0001] A heat transfer technology based on microchannel heat transfer technology and processed by atomic diffusion fusion welding technology, which is used in the detection and guidance of satellites, weapons, radars, etc., low-temperature electron microscopy, low-temperature medicine, and heat dissipation of electronic components. Cooler with burnt soup effect. Background technique: [0002] In gas liquefaction and low-temperature refrigeration technology, using the Joule-Thomson throttling refrigeration effect of actual gas (hereinafter referred to as J-T effect) is the most commonly used method, and as early as 1895, a J-T effect throttling refrigeration cycle was developed. For industrial gas liquefaction [1] . The development of miniature J-T effect refrigerators began in the 1950s. It usually consists of a counterflow recuperator, a throttling element and an evaporation chamber. Generally, a stainless steel tube with a small diameter (about φ0.5-φ1mm...

Claims

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Application Information

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IPC IPC(8): F25B9/02F25B41/06F25B41/30
Inventor 崔晓钰沈智峰
Owner UNIV OF SHANGHAI FOR SCI & TECH
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